Cool the motor’s stator core and
end-windings
With the increasing output power of electric motors for EVs and PHEVs, there are more demands to cool the end-windings of the stator. Cooling methods keep progressing. Starting from the method of oil circulation inside the die
cast, currently oil jet bending cooling pipe has been developed for electric motors.
Our vanguard cooling pipe will offer motor suppliers and electric motor vehicle companies more benefits than ever by patent pending piercing technology.
Cooling the heat-generating stator
Cooling pipe sprays oil and cools such heated stator with efficiently.
Cooling the whole end-windings
Setting cooling pipes around the whole end-windings realizes complete cooling.
Total customization of pipe depending on your needs
We individualize the pipe shape, size, and design depending on where you want to cool. We are eager to craft custom prototype of your own.
Cost down of motor unit
Do you think performance improvement leads to increase in cost? That’s not true. Our cooling pipe can decrease its own cost and that of motor unit.
Cost down by patent pending technology
Reduction of pipe cost
As a result of that patent pending technology, which enables piercing anywhere including curving area, it has become possible to design with total flexibility. It also leads to material cost down.
In addition, piercing can be processed more cost-effectively than ever.
Most appropriate system
Reduction of aluminum cost
Cost down is not limited only to reduction of pipe material cost.
Patent pending technology permits design flexibility which also saves space. When designing a new motor, the motor case can be smaller than current cooling pipes produced by existing technologies. That means, aluminum cost, material of the motor case can be reduced.
Make the motor unit smaller and lighter
This patent pending processed cooling pipe will make motor unit be smaller and lighter.
Weight saving and compactification
The patent pending technology has made it possible to pierce to any curving area, no extra space for bending is necessary.
That means our new cooling pipe can compactify motor case, providing more design flexibility, compared to current cooling pipes. It saves weight as well, which is important for EV/PHEV.
Innovative piercing for motor coil-end
Our piercing is able to be applied to curving R part by the patent pending method. We can also do the following.
Jet oil technology for motor coil-end
Our jet oil technology can inject the oil to the very target point by the patent pending manufacturing method.
Derivative technology
Oil jet target accuracy and the technology of oil flow control are our know-how through jet oil for cooling engine, development of shower pipe, and mass production.
Jet oil valve
This valve wear prevention engine piston by spraying oil to targeted place and calculated amount. We developed and are producing, obtaining 100% share, adopted by multiple automobile makers. We have record of production quantity among whole branches including Japan, China, and Mexico.
Production, from assembling to inspection, is automated by self-manufactured machines.
Development of testing machines to verify accuracy of our products
For oil control functionality inspection, we could not find appropriate machine in the market, for which we developed testing machines of our own, which reinforces our know-how for better products development and production.
Ensure our oil jet position
We also have the record of production quantities for shower pipe which wear prevention engines by spraying oil to targeted points.
To ensure our oil jet position, we ship them after inspection for each mass-produced products. This makes complete wear prevention possible. This performance guarantee will be applied to cooling pipe as well.
About us
We produce fastener and various pipes for automobile. Pretensioner pipe for seatbelt is supplied globally from all 3 plants.
All plants are IATF16949 certified.
Japan(Headquarters)
Matsumoto Heavy Industry Co.,Ltd.
R&D and the products of fastener and pipe are produced.
Established in 1946.
December sales in 2019: 170 million USD (Non-consolidated basis)
Selected as a regional future leader by METI.
Click here for corporate site
China
SHANGHAI MATSUJU AUTOMOTIVE&ELECTRONIC EQUIPMENT CO.,LTD
Established in 2005
2nd factory was established in 2019.
Pretensioner pipe and the products of pipe are produced.
Mexico
MATSUJU MEXICANA, S.A. de C.V.
Established in 2012
Fastener and the products of pipe are produced.
Our customer
MAZDA Co., Ltd.
SUBARU Co., Ltd
DAIHATSU Industry Co., Ltd.
Mitsubishi Motors Industry Co., Ltd.
KUBOTA Co., Ltd.
Hitachi Automotive systems Co., Ltd.
Joyson Safety Systems Japan Co., Ltd.
Autoliv Co., Ltd.
NSK Co., Ltd
NTN Co., Ltd
JTEKT Corporation
SKF Group
Ashimori Industry Co., Ltd.